Capping device



Patented Apr. 2l, 19%5.

GAETANO MABCHESNI, OF NEW YORK, AND CARE() DALBONI, OF STATEN ISLAND, NEW YORK.

CAPPNG DEVICE.

.Application filed June 11, 1324. Serial No. 719,430.

.To all whom t may concern.'

Ee it known that we, GAETANO MAi-iorin siNI and CARLO DALBONI, subjects ot the King oi italy, residing at New York and Staten Island, in the counties oi New York and Richmond and State of `New Yorlr, respectively, have invented certain new and useful vIinprovenients in 'Capping Devices, oi" which the following is a specification.

urinvention relates to capping devices, particularly devices for capping storage vessels `and similar containers.

An object of this invention is to provide.

-a device for afliixing caps to cans. and the like, without the use of solder, and in a inan lner that affords a peri-ect Vseal between the cap and the can receiving it. The advantages of the invention will appear troni the following description, taken with the accompanying drawings, which illustrate how tl e invention may be practiced.

0n said drawings,

Figure 1 shows the top, in part, oi' a can or vessel having a capattached according to our invention;

Fig. 2 isa side view of such a cap;

Fig. 3 is a section on the line 3-3 of Fig. 1;

Fig. 4 shows in part the. top oi: the can and the structure of the opening into which the cap or closure is placed;

Fig. 5 is a side view;Fig. 6 a front view; and Fig. 'Z' an end view ot one torin of our improved cappingv device;

Fig. 8 is a side view of another construction for achieving the objects of our invention; and

Fig. 9 is a side View, Fig. 10 atop view, and Fig. 11 a bottoni view ot a chuck, with controlling lever, to be inounted in said construction, and constituting another type ot capping device according to lour invention.

The saine numerals identify the saine` parts throughout.

We show at 1 a container, such as a can oit sheet inetal, having an opening 2, through which the container can be iilled with a liquid to be stored therein. This opening is adapted to be closed by a cap 3. rlhe aperture 2 has an upt-urned external riin 4;, and surrounding this riin is a groove 5 in the outer surface ot the top ot the can, forming on the inside 0i the can an annular rib 5a, which reinforces the top around the opening 2. To close the opening 2, the

Vhas corresponding recesses 9. closure o projections 8 thereon i'it into the recesses 9, and `thus the cap -is held against turning.

The cap canthen be worked to expendthe rim 5 onthe inside ot the can, as indicated at 10. Thus the edge or periphery of the opening is thus firmly engaged by the cap, being held in tact between the bulge 10 and the ange Z5 and the closure is thus aixed to the can and the utmost tightness of the closure is assured.

To produce the bulge 10, the device shown in Figures 5, 5 and inay be utilized. This device is portable and can be operated entirely by hand. It comprises a pair of bars or ineinbers 11, ot suitable shape, connected adjacent one end by a pivot 12. Upon the end nearest this pivot each bar carries a seniicircular die 13, the two dies being in the saine transverse plane, and having their straight or diainetral sides adjacent to each other. rFhe faces of the dies are flat, and iush with each other, yand the opposite curved edges of the dies are equipped with projecting flanges 1li. At the other end each bar has a transverse handle 15, rigidly secured in any suitable way. rThese handles inay be Seniibylindrical, with their flat faces turned towards each other, and between the handles are springs 1G, tending to force the handles apart. rFliese springs inay be disposed in sockets. The springs keep the adjacent straight sides oi the dies 13 close to gether, but it the handles are grasped and inoved towards each other, the diesare separ'ated.

Hence to atlin al cap tothe can '1 with this device, the cap is inserted into the opening 2, with-the projections '8 engaging the recesses 9, to keep the cap trom turning. Then the dies 13 are placed against the depressed i'ace 01"' the cap, and the handles 15 compressed and forced to inove towards each other and thus distend the dies 13. This operation nialres the flanges 1li press against the upturned riin 6, and then by rotating the entire device with the handles still coin pressed, the rim of the cap inside the can is expanded to make the. annular bulge 10. The formation of the bulge causes the cap to be drawn down somewhat, and the fiange 7 thereon to press against the upper edge of the rim 4, very tightly, giving a leakproof union that is sealed to virtually the same degree as if solder were employed.

In the remaining views of the drawings, numeral 17 indicates a standard carrying a support. or rest 18 for the can to be capped. Above the rest is a vertical bearing 19, in which is a shaft 20. rlhe lower end of this shaft, just above the rest 18, has a recess or l bore 21 to receive and hold the shank 22 ofv a chuck 23. This chuck carries a number of levers or pivoted bars 24, similar to the bars or levers 11, mounted on pivots or journals 25. These levers are disposed in slots 26, between longitudinal ribs 27 on the chuck, and the ends of the levers each have a die 28 in the form of a roller mounted on a pivot 29. The edges or rims of the rollers may be rounded (like the flanges 14). Each lever 24 is formed like a bell crank lever, with the bend or elbow 30 turned towards the axis. Therefore, pressure on these corners along the aXis will distend the levers and move the dies 23 outward.

The chuck 23 has a shoulder 31 at the juncture of the shank therewith. On this shoulder rests a ring 32 encircling the shank to press against the elbows 30 of the levers 24. Cn this ring is a second ring 33, carrying anti-friction balls 34, in recesses therein, and resting on this second ring 33 is a third ring similar to the first ring 32. The balls 34 engage both rings 32. Above the upper ring 32 is a sleeve 35, loosely encircling the shank 22. To the outside of this sleeve is pivoted, at diametrically opposite points the forked or yoke-end 36 of a controlling lever 37, having a handle 33. This lever carries cam projections 39 adjacent the pivots and bearing on the upper ring 32. At the upper end of the sleeve is a second ring 33 with antifriction balls to encircle the shank 22 above the sleeve 35, between the chuck 32 and shaft 20. At 40 is shown a screw or key to hold the shank 22 in the bore 21 of the shaft 20; this screw entering a longitudinal slot 41 in the shank 22.

To make use of this construction, a can is placed on the rest 18, and the cap put into the opening 2. The chuck 23 and shank 22 are raised slightly as permitted by the slot 41, and then the chuck is lowered against 31. lVhen the lower end of the chuck 23 is caused to engage the cap 2, the levers 24 can be moved by hand in towards the axis ofthe chuck, and with the controlling lever 37 elevated, this movement of the levers is allowed. As soon as the lever 37 is depressed, the cams 39 force the lower rings 32 and the ring 33 down, and the levers 24 are then swung outward.

The standard 17 has lugs 43 bearing a binding screw 44 to enable the apparatus to be fastened to a bench. On the shaft 2O are fixed collars 45 above and below the bearing 19, and at the upper end of this shaft is a bevel gear 46. The bearing 19 is extended to form a horizontal bearing 47, in which is a shaft having a bevel pinion 48 at one end to mesh with the gear 46, and at the other end a crank 49 with a handle 50. By this crank the shaft 2() and chuck 23 can be rota-ted. As the shaft and chuck are ro tated, the handle 3S canv still be held and forced down becauseV the sleeve 35 is loose on the shank 22, and because of the pressure of the bearing balls 34.

We, of course,-a"eserve the right to make changes within the scope and spirit of the invention.

Having described our invention, what we believe to be new and desire to secure and protect by Letters Patent of the United Stat-cs is:

A capping device comprising a chuck, pivoted levers on the chuck, roller dies carried by said levers, a shank connected to the chuck, a sleeve on the shank, a handle carrying cams, a ring engaged by the cams, whereby, on actuation of the level', the dies will be moved to operative position, a shaft to rotate the shank, means to operate the shaft, a standard to support the shaft, said means and the chuck, and a rest beneath tht` chuck.

In testimonj7 whereof we affix our signa tures.

GAETAN() MARCHESINL CARLO DALBONI. 

